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- double closing hoop 双闭箍
- Valve Disadvantages: The valve is difficult to close and requires the operator to double close the valve. 阀门的缺点：阀门难以关闭，要求操作者二次关闭阀门。
- When disconnecting cylinders with diaphragm valves, it is most important to double close the valve and to properly install the outlet seal. Failure to use this procedure can result in release of the product into the environment. 当切断钢瓶和隔膜阀的连接时，两次关闭阀门和正确安装排气口密封是最重要的。不采用这个程序会导致产品泄漏入环境。
- Application of the double closed loop control has already been popular in SMPS, because such a system has a fast dynamic response and good stability. 其磨床改造方案是采用单片机作为控制系统,步进电机作为驱动执行装置的闭环控制系统。
- Aimed at characters of large-power EAF's smelt procedure, this paper implements intelligence intergrated control system, by using double closed loops' structure: the inner current loop and the outer temperature loop. 针对电弧炉冶炼生产过程多变量耦合、变非线性、时延和强干扰等特点,采用了温度控制外环和电流平衡控制内环的双环路结构,并实现了电弧炉温度和电流平衡的智能集成控制。
- As for software design, the system consists of the double closed loop of questing troughs arithmetic and down fluting depth arithmetic, in both arithmetics working in turns until all troughs of electromotor are machined. 在软件设计上，系统由找槽控制算法和下刻深度算法双闭环控制组成，槽控制算法与下刻深度算法之间相互切换直到加工完电机的所有槽。
- Abstract： The system control structure which can realize adjusting speed and diff erency frequency double closed circle adjusting speed of the general frequency c onverter is introduced. 介绍了采用通用变频器实现转速、转差频率双闭环调速系统控制结构，在实验基础上对起动过程进行了分析。
- He is working double tides to finish his essay. 他日夜苦干，赶写他的文章。
- I do not realize it is a double feature. 我原先不知道这是双片连映。
- Double agents live in a perpetual state of fear. 两面派永远过着提心吊胆的生活。
- I want a double room with a view. 我要一间能看到风景的双人房间。
- closing hoop net 抄网漏斗网
- He was so fat that he had a double chin. 他胖得有双下巴了。
- The carpet is too thick to double up. 这地毯太厚没法折叠。
- Is the material single width or double width? 这幅料子是单幅的还是双幅的？
- Reserve double room June fourth to tenth inclusive. 预订双人房间，六月四日至十日，共六晚，望订妥复电。
- In this case, I can double for penalty. 假如这样的话，我可以叫加倍了。
- Can you tell me the rate for a double room, please? 请告诉我一间双人房的费用可以吗？
- The soldiers came at the double. 士兵们是急行军来的。
- A couch performs a double service. 躺椅有双重的服务。
